TL;DR
A panelboard is the formal code term for the assembly of buses, breakers, and terminals inside an electrical panel's cabinet — the apparatus that receives a feeder and distributes it to branch circuits with overcurrent protection. Listed under UL 67, each one carries ratings for bus amperage, voltage, and short-circuit current that installers must match to the available fault current.
What it means
A panelboard is the formal code term for the assembly of buses, breakers, and terminals inside an electrical panel's cabinet — the apparatus that receives a feeder and distributes it to branch circuits with overcurrent protection. Listed under UL 67, each one carries ratings for bus amperage, voltage, and short-circuit current that installers must match to the available fault current. In the trades the word distinguishes the guts from the enclosure, and commercial specs call panels by this name.
Where it sits in the glossary
Panelboard is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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